Cultivator



Mardi 17, 1925.

' 1,530,106 F. w. BUNN CULTIVATOR Filed June A15, 1922 2 sheets-sheet .1

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F. W. BUNN CULT I VATOR Filed June 13, 1922 2 Sheets-Sheet 2 Patented l?, lgi.

UNITED s'rn'rrs-r l 1,530,1@6 PATENTfffo'FFicE.

rannnniox wjiiuniv, or BRISTOL, CONNECTICUT.

'oULrIvAfron Application filed .Tune 13, 1922i, Serial No. 567,922.

To all 'u1/lem 'It may concern:

lle it known that l, lnn Enron W. BUNN, a citizen ot the United States, residing at Bristol. in the count-y ot Hartford and State et Connecticut, have invented a new and use- 'lnl linproi'enieut in Cultivators; and l do liei'elri' declare, the following, when taken in connection with the accompanying drawings and the characters of iielerence marked thereon, to he a lull, clear, and enact description otthe saine, and which said drawings eoinjtitutepart ot this applica-tion, and rep rese l, in-

Fig. l, a broken plan view olf one 'torni which a wheel-cultivater, constructed iii-*ace cordancc with niy iiivention, may assunie.

` llig. 2, a view in vertical. central section ou tlie'line 2 2 ot Fig, l.

Fig. 53, :i broken view thereof in front elevation. i

lily inventioirrelatcs to an iinproveinent in wheel-cultivators and is primarily designedr for hand or man-power cultivators, lait not so limited, the object being to produce a simple, durable and ellicientcultivator constructed with particular reference to cult' 'ating the soil'lyiug between the individual plants oit a row, aswell as' that on either side thereof. Y

TWith theseends in view, iny invention consists in a wheel-cultivator lhaving two tools positioned to cultivate. the soil on both sides et a row oil plants,l a movable tool posi tioned to cultivate the soil between the'individual plants, and means 'tor lifting the inovable tool at pleasure to clear the plants, whereby the soilis cultivated hetween the pla-nts as well as alongsidethe plants.

lll/ry invention 'further consists in a wheelcnltivator having certain details ot construction and conibinations oi-l parts as will be hereinafter descrihed and particularly pointed out in the clain'i.

ln cz-,rrying out iny invention, as herein shown, l. employ a supplemental tool which may be ot any one ot the ditl'iffrent :terms ot tools employed in cultivators in general use. This tool is removably sci :iufed by a set-screw (l to the lower end ot a vertically-nimiable post 7 having sliding bearing in a Central opening 8 .in a transversely-arranged horizontal bar 9 scoured at its ends by bolts l0 `to the two complementary horizontal toolinounting plates ll oit the cultivator, the bolts 10 passing' through transversely-arranged slots l2 in the said plates. The proyfixed but` adjust-able,

jecting upper end'oil the saidpost 7 carries abolt 13 passing through one ola series ot bolt-holes lll: in the rear end of ai bar lorocking on a holtl in a bracket l? fastened by a v holt i8 to the center or' thearched top of an upstanding `bowed traine or yoke l9,the

straight sidesfolf which have their lower endsv secured in the usual manner to `theinner edges or the mounting-plates 1l and serving to unite 'the saine. rlhe forward end of the rocking bar l5 `is formed with a series of holes 2t), one of which receives a hook '211011: the end oit an operating-chain 22 ruiming vdownward and under a pulley `noounted in a bracket 3l secured to the inner face othe said handle. A spring 32 connected at its upper end with the rocking-bar 1handat-its lower end with the horizontal bar 9, exerts a. constant etlort to depress/the vertically-movable post 7, and so lower the suppleinental tool v5 into positionfoi-`penetrat ing the soil. The said tool 5 as thus "con structed and arranged is positioned substantially in line with the central longitudinal axis of the cultivator, this axis being represented :tor iny present purpose by theline 53 which is virtually coincident with the eX- pected line of travel of the cultivator itself, and with the row ot plants 34 spaced apart in the customary manner ofplanting in rows. y

As herein shown, the said supplemental tool 5 flanked on either sideby normally interchangeable, coniplenientary tools 35 ot any approved torni and construction, and having bowed shanlrs 36 respectively passed upward. through transverse slots `ST-vnear the rear edges of the two mounting-plates il and held in place by nuts 38. The said plates l1 .are

formed with forwardly-extending arins 39 carrying wheels t() which travel on opposite sides or the line 33 aforesaid, and hence alongside and parallel with theA row of plants Se; The left-hand handle-bar 25 corresponds to the right-hand handle-bar and is similarly secured to the bowed frame or yoke 19.

In the use of my improved cultivator, the liXed tools 35, whatever their form, cultivate the so-il'on either side of the row of plants in the usual manner of such tools,

while the centrally-arranged, vertically- Y movable supplemental tool 5 cultivates the lifting-lever 28 through its handle 27.L

l/Vhen he removes, or lets upyk on, the pressure appliedto the lever 28, the spring 32 asserts itself to bring the tool 5 in the soil again, and so on. Since the tool 5 is entirely under the control of the operator, it makes no dilference whether the plants are uniformly spaced or not, `though uniformity in that respect makes the action of the. machine easier and more regular. lThe control of the supplemental tool 5 is thus placed entirely within the right-hand of the operator and provision made for cultivating the soil between the. individual plants of a row,

` aswell as the soil alongside thereof. In a word, my improved cultivator provides for jumping a cultivator tool over the individual plants in a row, thus supplementing the fined eultivator tools heretofore used in wheel-eultivators of the type to which my invention pertains, with the eifeetof cultivating the soil on all sides of the indi,- vidual plants, whereas, heretofore, it has been necessary to cultivate the soil between the individual plant-s of av row by hand-held tools.

Vhile I have shown my improvement as member, of two wheels carrying the forward end of the said frame and locatedv in front of the said yoke-member, tools carried bythe said frame and suitably spaced apart. to cultivate the soil on either side of a row of plants, two diverging propelling handles attached to the frame and extending rearwardly therefrom, a non-retable, substantially-vertical post bearing in the said Uframe and moving therein in a rectilinear path, a supplemental cultivating tool ,mounted upon the lower end of the said post, a hand-lever mounted upon the rear end of one of the said handles for lifting supplemental tool, a rocking-lever mounted upon the upper end of the said yoke and connected at one end with the upper end of the said post, and a. flexible connection between the said hand-lever and the opposite end of the said rocking-lever, whereby, by operating the hand-lever, the supplemental tool may be lifted in a rectilinearl path at pleasure abovel the plants without disturbing the other tools.

In testimony whereof, I have signed thi` specification in the presence of two subscribing witnesses. i

FREDERICK IV. UNN. l/Vitnesses:r f, 1 i

W. C. I-I. MASON, l WILLrAM L. NEUBAUER. 

